I am using MS Office 2011 for Mac on Macbook air with OSX 10.9.4. In the comment balloon the date and time stamp shows some different language after date. I have added the screenshot of Word document below. How to change it to English? The language in both Word and system preferences is already set to English.

As I mentioned in my question, I have already set the language to English in system and word preferences. My calender is set to Gregorian and I don't know where to change the language in calender option.
– SudhirAug 24 '14 at 12:19